Constant re-installing of preview app

I have uninstalled and re-installed the preview app on my firetv device at least 12 times in 2 months. The following issues have happened and been fixed by this :

  • the scheduled tab coming soon tab just spinning circle and not loading

  • video playback stuttering like you had a bad antenna signal

  • deleting a program but getting a black box with an x in its place

any idea why i have to keep doing this ?